81626180

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{101}}^1\times {\mathrm{2377}}^1$

素因数の和:2504

約数の個数: 48

約数和(自身を含む): 183372336

約数和(自身を除く): 101746156

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 101, 170, 202, 340, 404, 505, 1010, 1717, 2020, 2377, 3434, 4754, 6868, 8585, 9508, 11885, 17170, 23770, 34340, 40409, 47540, 80818, 161636, 202045, 240077, 404090, 480154, 808180, 960308, 1200385, 2400770, 4081309, 4801540, 8162618, 16325236, 20406545, 40813090, 81626180]

約数ペア:

[(1, 81626180), (2, 40813090), (4, 20406545), (5, 16325236), (10, 8162618), (17, 4801540), (20, 4081309), (34, 2400770), (68, 1200385), (85, 960308), (101, 808180), (170, 480154), (202, 404090), (340, 240077), (404, 202045), (505, 161636), (1010, 80818), (1717, 47540), (2020, 40409), (2377, 34340), (3434, 23770), (4754, 17170), (6868, 11885), (8585, 9508)]